Phylum Mollusca Biological classification part 17 Class XILecture 45

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Phylum Mollusca includes Triploblastic, coelomate, soft bodied organisms having tube-within-tube body plan and organ system level of organization. • The organisms are characterized by the presence of Mantle (spongy layer over the visceral hump) that scretes calcareous shell. • eg- Pila, Sepia, Octopus, etc. • Stay tuned for upcoming 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